20303030323 has 2 divisors, whose sum is σ = 20303030324. Its totient is φ = 20303030322.

The previous prime is 20303030311. The next prime is 20303030347. The reversal of 20303030323 is 32303030302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20303030323 - 2²¹ = 20300933171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20303030323.

It is not a weakly prime, because it can be changed into another prime (20303033323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151515161 + 10151515162.

It is an arithmetic number, because the mean of its divisors is an integer number (10151515162).

Almost surely, 2^20303030323 is an apocalyptic number.

20303030323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303030323 is an equidigital number, since it uses as much as digits as its factorization.

20303030323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 19.

Adding to 20303030323 its reverse (32303030302), we get a palindrome (52606060625).

The spelling of 20303030323 in words is "twenty billion, three hundred three million, thirty thousand, three hundred twenty-three".